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Home  >  Journal list  >  Polymer Journal  >  Vol.49  No.9 (2017)  >  pp.665-669

Polymer Journal
<<Previous article Vol.49  No.9 (2017)   pp.665 - 669 Next article>>

Preparation and properties of organic–inorganic hybrid materials using titanium phosphonate cluster

Ryohei Hayami1, Keisuke Wada1, Izumi Nishikawa1, Takuya Sagawa1, Kazuki Yamamoto1, Satoru Tsukada2 and Takahiro Gunji1
1Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science, Chiba, Japan
2Advanced Automotive Research Collaborative Laboratory, Graduate School of Engineering, Hiroshima University, Hiroshima, Japan

Organic–inorganic hybrids containing [Ti4(μ3-O)(OiPr)5(μ-OiPr)3(O3PPh)3]·thf as element-blocks were prepared by hybridization with poly(dimethylsiloxane), poly(methylsilsesquioxane), poly(ethoxysilsesquioxane), poly(methyl methacrylate), poly(vinyl alcohol), poly(4-vinylphenol), poly(styrene-co-allyl alcohol) or poly(bisphenol A-co-epichlorohydrin). The concentration of the titanium cluster was increased to 40wt% to form crack-free films with high transparency. The temperature at which 10wt% weight loss occurred increased with the concentration of the titanium cluster because an alcohol exchange reaction was expected between the titanium cluster and polymers. The mechanical strengths and strains of poly(dimethylsiloxane) hybrids were very low. The tensile strengths and elongations of poly(methyl methacrylate) hybrids increased with the increase in the titanium cluster concentration. The tensile strengths and elongations of poly(vinyl alcohol) hybrids were highest when the titanium cluster concentration was 10wt%.

Received: April 27, 2017 , Revised: June 04, 2017
Accepted: June 08, 2017 , Published online: July 12, 2017
© 2017 The Society of Polymer Science, Japan

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